Container with Sealing Wall

ABSTRACT

A container ( 210 ) for holding granular/powdered material and formed by a top wall ( 212 ), a bottom wall ( 214 ), a front wall ( 216 ), a rear wall ( 218 ), a first side wall ( 220 ), and a second side wall ( 222 ). A removable lid (D) is interiorly mounted with a scoop ( 32 ) and is hinged to a collar ( 300 ) that includes a sealing gasket ( 330 ). The collar ( 300 ) mounts to the walls of the container ( 210 ). A sealing wall  240  of the lid (D) cooperates with the powder controlling features to prevent and minimize spills, and which include a substantially domed central section ( 344 ) positioned inwardly of the sealing wall ( 340 ). The substantially domed central section ( 344 ) is formed as part of the lid (D) and connected thereto by the sealing wall ( 34 ) and or an angled tapered wall ( 346 ).

PRIORITY CLAIM TO RELATED APPLICATION

This application claims the benefit of the earlier filing date ofcommonly owned and co-pending U.S. patent applications Ser. No.11/645,887 filed Dec. 27, 2006, and Ser. No. 61/014,595 filed Dec. 18,2007, both of which are hereby incorporated by reference in theirentirety as though fully set forth in the present application.

RELATED APPLICATIONS

This application is also related to three other commonly owned andco-pending applications filed on Dec. 26, 2007, concurrently with thisapplication, each incorporated by reference. The titles and inventorsare:

-   -   CONTAINER WITH GASKET SEAL, invented by James P. Perry, David        Compeau, Craig A. McCardell, and Jeremy McBroom and given Ser.        No. ______.    -   CONTAINER AND CONGRUENT SCOOP ASSEMBLY, invented by James P.        Perry, Peter B. Clarke, J. Kevin Clay, Marc A. Pedmo, Richard C.        Darr, Katherine Jordan, William J. Hook, Ashley A. Gohlke, and        Jack E. Elder and given Ser. No. ______.    -   CONTAINER AND COLLAR WITH ATTACHING MEANS, invented by James P.        Perry, Charles R. Schotthoefer, David Compeau, Craig A.

McCardell, Jeremy McBroom, Frank S. Walczak and Jack E. Elder and givenSer. No. ______.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to the field of packaging, and more particularly,packaging containers for granulated products, such as for example, apowder.

2. Description of Related Art

Currently, products in granular or powdered form, such as, for purposesof example without limitation, infant formula, flour, coffee, sugar, arepackaged in containers. Scoops are provided within the package formeasured dispensing of such contents. Consumers or users of suchcontainers have found that the current packaging is difficult to handlewith a single hand, and have found that it is difficult to open thecontainer and to locate and remove the scoop from the packaging upon thefirst use without experiencing spillage. Once the lid of the containeris removed and/or opened, the contents are often loosely caked or packedinto parts of the interior of the lid or top of the container, whichleads to spillage as the contents fall away from the lid or top. Whilesome of the falling powder may fall back into the interior of thecontainer, much of it is wasted and contaminated as it spills onto thesurrounding workspace. Additionally, prior containers do not offeradequate sealing of the contents after the container has been opened forthe first time. This leads to the undesirable and inadvertent leaking orescape of the contents from various poorly sealed areas of thecontainer.

When the user wishes to withdraw a portion of the product from thecontainer, she must first dig around in the interior of the containerwith her fingers to find the scoop. This search and locate processcontaminates the contents and soils the hands of the user, which canlead to more unwanted spillage as the powder-coated fingers and handsare removed from the interior of the container. Once located, the scoopis withdrawn so that it can be used, and the scoop is also coated withthe contents. The bowl of the scoop is also caked or packed with thecontents. As the coating of powder and the packed bowl of powder loosenduring the removal process, more contents are contaminated and wasted asthe coating falls away from the hands, fingers, and scoop, and as anypowder caked in the bowl loosens and falls.

Additional problems have been experienced with scoops that arepositioned in a more convenient location, perhaps against an interior orexterior wall. These additional problems include difficultly in graspingthe scoop, which may be tightly fastened with adhesive against the walland/or with a mechanical retainer or fastener that leaves very littleclearance between the scoop and surrounding structure of the containerfor grasping the scoop. These undesirable configurations typically willrequire more than one free hand for removal and grasping of the scoop.

Once the scoop is located and gripped by the user, it can be used towithdraw and dispense the desired amount of product. Typically, thescoop is then placed back into the container and the lid is replaced toclose the container. The next time the product is to be withdrawn fromthe container, the process of searching for the buried and powder-coatedscoop is repeated. U.S. Pat. No. 5,706,974, incorporated herein,discusses the problem of storage of the scoop outside of the granular orpowdered product.

Users have also found that it is difficult to remove the last bit ofpowder from the nearly empty container because the shape of thecontainer includes tight and closed spaces that are inaccessible to thescoop, and which has other areas having a shape that is different thanthe shape of the scoop. As a result, a user must resort to inverting thecontainer to completely empty the contents, which creates anotherinstance of spillage and wasted contents.

Manufacturers of such containers have also experienced a number ofchallenges in fabricating the containers when using various types ofoptionally preferred thermo-forming and polymeric manufacturingprocesses and materials. In many prior art attempts to manufacture suchcontainers, various thermo-molding processes are used. Those skilled inthe relevant arts have long known about the difficultly in producingvarious types of packaging containers using thermo-formed polymericmaterials.

Such materials are subject to many variables that adversely andunexpectedly result in product components being produced that can varybeyond acceptable dimensional tolerance limits, which results in theneed to scrap defective containers and components of such container, andthe need to produce replacements. Also, polymeric materials can rendermis-shaped component profiles due to unexpected shrinkage and warping,and other thermo-forming anomalies that leave entire production runs ofcontainers and components for containers destined for the scrap heap.

These types of manufacturing problems are especially pronounced incontainers formed from assemblies that incorporate more than onecomponent, such as where a top or lid and a collar assembly are fastenedto a bottom part of the container. Problems in assembling suchcomponents can result if one or both of the components are out oftolerance or otherwise mis-shaped. Even where it is sometimes possibleto assemble improperly dimensioned or mis-shaped components, mostpolymeric container configurations have long been in need of improvedstrength and rigidity characteristics to overcome such anomalies and torender such containers more durable for use in a wider array ofenvironments.

Still other users experience problems with prior art containers that areinadequate for use in circumstances where the ambient air pressureexternal to the container changes drastically so as to create asignificant pressure differential between the sealed interior space ofthe container and the external, ambient atmosphere. This situation ismost apparent in situations where a manufacturer produces containersthat are filled and sealed at a factory located at an altitude at ornear sea level.

When such sea-level pressure containers are shipped to consumers locatedat higher altitudes or elevations, the container packaging will have ahigher internal pressure, which creates a pressure differential that canbe significant. If the pressure differential is large enough, thecontainer may become distended making it difficult to stack and store,and may even experience a breach, leading to contaminated and wastedproduct. The opposite situation can occur when containers that arefilled and sealed at a higher altitude are shipped to lower altitudeusers. Upon opening, ambient air can rush into the interior space of thecontainer and contaminate the contents.

When a container having a pressure differential is opened, the contentsmay again spill due to the very rapid pressure equalization ejecting acloud of powdered or other type of product contents. Attempts toovercome these disadvantages have included thicker walled containers,which increases weight and material costs, as well as round andcylindrical containers that may have higher hoop stress strength, butwhich are less efficient and convenient to stack and store on a shelf.

What has long been needed in the field of art is a container thataddresses the many issues surrounding prior art containers, and whichmost importantly offers new and innovative ways to prevent and/orminimize contamination, spillage, and waste of product contained in suchcontainers. A container has been sought that better enables access tothe last bit of powder in a nearly empty container without the need toinvert the container. It is also advantageous to create a container thatenables more convenient access to a scoop for dispensing the powder. Acontainer package that can be easily manipulated by one hand whileleaving the other hand free for opening and dispensing is particularlyneeded for a variety of applications. A container that is easy tohandle, grip, and to transport in quantity and to stack and store on ashelf has also been needed for a long time.

Many attempts have still fallen far short of creating a more durablecontainer that incorporates improved rigidity and strengthcharacteristics that can expand the range of acceptable dimensionaltolerances and that can adapt to and more readily accommodate unexpectedmis-shaped container component profiles. The field of art continues tohave a need for a container that can better withstand pressuredifferentials without compromise of the container, and which canminimize the inconvenience of spillage and wasted product due to arapidly expelled cloud of product if the container is opened whilesubjected to a pressure differential.

SUMMARY OF THE INVENTION

Many of the problems of the prior art are addressed with the innovativesealable containers of the invention, which enable previouslyunavailable features including improved sealing capabilities, new waysto control spillage of powdered contents, new integrated dispensingscoops, and strengthened containers that can protect against spillageand damage to product due to adverse pressure differentials between thesealed product container and the external environment. In one preferredconfiguration of the invention, a sealable container includes wallsdefining interior and exterior surfaces and an interior space. The wallscan preferably have an upper portion near an upper end of the walls thatdefines a sealing flange that includes an internal edge, which definesan opening to the interior space of the container. The sealablecontainer also incorporates a collar having an interior surface whichfits around the container near the upper portion, which together definea subcollar space between the exterior surface of the container and theinterior surface of the collar.

The preferred sealable container also includes a removable lid that ispivotally or hingedly attached to the collar and which has an interiorsurface that, when the lid is in a closed position, covers and seals theopening of the interior space of the container. The lid preferably has asealing wall that depends from the surface of the lid and projectstoward the sealing flange of the collar, and which is dimensioned orsized to remain inward of the sealing flange when the lid is closed. Invariations of any of the embodiments of the invention, the sealing wallof the lid can be used alone and in place of the optional contemplatedintegral or flexible gaskets, and may also be used in combinationtherewith.

Even more preferably, the container includes in certain optionallypreferred embodiments either an integrally formed gasket carried fromthe collar and/or a separately formed flexible gasket, either of whichare preferably dimensioned to removably rest against the sealing flange.The gasket can be carried from a surface of the container such as theinterior surface of the collar, the interior surface of the walls, orthe sealing wall of the lid, as well as combinations thereof and whereinmore than one gasket may be preferred for use. When the lid is in theclosed position, the gasket, the sealing wall and the sealing flange arearranged and dimensioned so that the sealing wall biases the flexiblegasket against the internal edge of the sealing flange to seal thesubcollar space from the container interior, which prevents the contentsof the container from spilling into the subcollar space.

In variations of these embodiments, the sealable container may alsoincorporate a modified collar that includes a raised seat or similarfeature that carries the gasket or to which the gasket is affixed. Aswith other versions of the invention, the raised seat is configured sothat that gasket projects inwardly to bias against and to extend beyondthe internal edge of the sealing flange, which also serves to controlspillage of the contents of the container. More preferably, the gasketcan be arranged to remain biased against the sealing flange when the lidis in an open position.

In additionally preferred and optional embodiments of the invention, thesealable container can also include a removable seal that issubstantially impervious to air, water, and even light if desired. Theimpervious seal preferably extends across the opening to seal theinterior space and attaches to the sealing flange. In variations wherethe flexible gasket is included, the impervious seal preferably issituated underneath the gasket, and the flexible gasket flexes to enableremoval of the removable seal and thereafter flexes back to rest againstthe sealing flange.

In most embodiments of the inventive container, the lid is rotatably,hingedly, and/or pivotally connected to the container with a live ormechanical hinge mounted between the lid and the collar so that the lidcan move between open and closed positions. In certain preferredconfigurations of the invention, the novel sealable container isarranged wherein its walls form the container to have an approximatelycuboid shape. However, the present invention is susceptible for use incylindrical, rectilinear, obloid, and many other types of containerpackaging and for use with all kinds of containerized substancesincluding fluids as well as powdered and granular materials.

Some modifications of the embodiments of the invention also contemplateinclusion of a removable scoop and a scoop holder that can be attachedto the interior surface of the lid for holding a scoop. The most typicalscoops have a bowl that is carried from a handle. The scoop holder ofthe invention is formed with a first bowl cover bracket and has aretainer that immobilizes the handle. A first projection is alsoincluded that extends from the interior surface of the lid and which hasa handle holding notch that holds the handle away from the interiorsurface in a grasping position so that it is easy for a user to graspand remove the scoop from the scoop holder.

In still other variations of any of the embodiments of the inventivesealable container, the sealing wall of the lid can be further modifiedto funnel inwardly toward a lower edge, either by a curved inwardlydirected tapering of a lower edge of the sealing wall, or by a inwardlyslanted or inclining tapering thereof, or by a combination thereof.

The new and novel sealable container also contemplates further modifiedlid arrangements that are compatible for use with any of theembodiments, modifications, and variations of the invention. Such lidconfigurations are directed at improving control of powdered contents,and the improvements preferably or optionally include the lid having asubstantially domed central section that is dimensioned to be smallerthan the sealing wall of the lid. More preferably, the substantiallydomed central section is joined to the lid by either the sealing wall oran angled wall, or both, wherein the angled wall tapers from the domedcentral section down to the interior surface of the lid at a point thatis proximate to the sealing wall. The novel capability and benefits ofthe substantially domed central section are evident upon righting adisoriented container in that the angled wall and the sealing wallcooperate to direct any powder contents that may have accumulated withinor become packed against the interior surface of the lid, down into theinterior space of the container, which prevents entry into the subcollarspace and other forms of spillage from the lid upon opening thecontainer. Preferably, the angled tapered wall can have an anglerelative to a vertical direction of between about 10 and 75 degrees, andmore preferably between about 25 and 45 degrees, and even morepreferably about 30 degrees.

Many variations of possible domed lid configurations according to theprinciples of the invention are contemplated and can include, forpurposes of example without limitation, the substantially domed centralsection extending to the sealing wall to define an area betweenapproximately 20 percent and approximately 80 percent smaller than theentire area defined by the removable lid. Still other variations of thedomed lid can be used with any of the inventive embodiments and includethe substantially domed central section to project upwardly with aheight dimension that is between approximately 10 percent andapproximately 60 percent of a cumulative lid height dimension. In oneembodiment, the domed area is dimensioned to contain a volume sufficientfor storing a scoop, as described later.

As before and as described elsewhere herein, the innovative sealablecontainer embodiments can be further modified to have the walls joiningeach other and joining a bottom surface of the container to definejunctions that have a unique and/or predetermined or a particularcross-sectional geometry. In these variations of any of the embodimentsof the invention, a modified scoop is incorporated for removing contentsfrom the interior space of the container. The modified scoop includes abowl that has a rim that is substantially congruent to the particularcross-sectional geometry of the junctions between the walls and betweenthe walls and the bottom surface of the container.

This arrangement enables a user conveniently to remove all of thecontents of the container, whether powder or fluid, without the need toinvert the container, which can result in unwanted spillage. Thesevariations contemplate the particular cross-sectional geometry of thejunctions between the walls and between the walls and the bottom surfaceto include any one of a number of geometries including, for purposes ofexample without limitation, a right angle, multiple angles such asmultiple obtuse angles, and curvilinear geometries including a circulargeometry having a particular radius. For each of these respectivegeometries, the rim of the scoop bowl includes a portion that issubstantially congruent to the respective geometry, and/or which isflexible and/or deformable upon use to be made congruent thereto.

The sealable container of the present invention also can include manydifferent strength and rigidity improving features that can include thewalls of the container having the upper portion defining on the exteriorsurfaces a plurality of interiorly projecting indentations or recessesthat either form a continuous groove or are spaced apart by intermittentstabilizing bridges. The indentations preferably include a downwardlyfacing top surface or upper lug ledge. The collar is also modified toinclude a plurality of attachment means, such as fins or spaced apartflex clips or engagement lugs that are formed with retainer faces orupwardly facing surfaces. In a preferred variation, flex clipspreferably depend downwardly into the subcollar space and are positionedor juxtaposed to align with a plurality of spaced indentations when thecollar is fitted over the upper portion of receptacle of the container.

This arrangement enables the upwardly facing surfaces to engage thedownwardly facing top surfaces whereby the flex clips hold the collar tothe upper end of the container. The flex clips may also preferablyincorporate one or more stiffeners that increase the strength andrigidity of the flex clips to optimize engagement strength. Thestiffeners also serve to improve an alignment capability established bythe flex clips, which effectively center and align the collar about theupper portion of the container as the collar is fitted onto the upperportion of the walls of the container.

Additionally preferred variations of the flex clip and indentationmodification include the upwardly facing surfaces being dimensioned tobe smaller than the downwardly facing surfaces of the indentations sothat the collar and container can absorb dimensional tolerance errorsand enable the collar to fit around the upper portion of the containereven if they are not sized exactly as may be desired for a perfect fit.Further preferable modifications to the various embodiments of theinventive sealable container include at least one of the collar and theupper portion of the walls to be formed from a substantially flexiblematerial.

Using a flexible material such a polymeric material like polypropyleneand/or polyethylene will enable at least one of the collar and the upperportion of the walls to flex to absorb dimensional tolerance errors andenable the collar to fit around the upper portion of the container.Either of these innovative adaptations are suitable for use with all ofthe variations of the embodiments of the invention and can, as a result,also accommodate shape errors and mismatch between at least one of thecollar and the upper portion of the walls to enable the collar to fitaround the upper portion of the walls, even when unexpectedly orundesirably misshaped collars and/or receptacles are encountered duringmanufacture and assembly.

In yet another particularly preferred and optional modification to thevarious embodiments of the invention described herein, the sealablecontainer employs a modified collar having a substantially J-shapedand/or U-shaped, upside-down cross-section. In this variation, the J orU shaped cross section includes an outward projecting long wall, asubstantially rounded, stiffening top portion, and an inward short wallthat cooperate to define the subcollar space.

The invention is susceptible to still further optionally preferredvariations wherein the container is strengthened by incorporating theplurality of indentations and the plurality of spaced apart fins or flexclips to be positioned in an oppositely paired relationship. In theapplication of a substantially cuboid container shape, the oppositepairing is established across opposite facing walls of the container,using generally 2-6 fins or clips per side. However paired, a forcevector coupling is established between each of the pairs. This increasesrigidity and structural stability and strength of the sealablecontainer, and tends to absorb any tolerance mismatches when the collaris fitted onto the upper portion. Additionally, this particulararrangement of flex clips and indentations enables an aligningcapability between the collar and the upper portion of the walls, whichcan be useful during assembly of the inventive sealable containers. Theflex clips can be further strengthen by including at least onestiffening rib on one of more of the flex clips.

Still other contemplated modifications are suitable for use with all ofthe modifications, variations, adaptations already described, whichinclude the bottom surface including pressure control features that canprevent deformation of the container, and which can also be adapted toenable controlled deformation to relieve stress on the container due tointernal pressure being higher than an external ambient atmosphericpressure, which can occur when a sealed container is subjected topressure changes due to altitude changes and/or other types of crushingforces that may be experienced during manufacture, filling with product,and during use and transit.

In this adaptation of the preferred embodiments of the invention, thebottom surface includes a pressure control portion that is otherwisereferred to as a central raised stiffener portion, which contrary to theplain meaning of the word stiffener, may also incorporate a flexibleand/or collapsible pressure relief section. An outer planar portion thatis substantially flat for resting on a surface surrounds the centralraised stiffener portion. The central raised stiffener portionpreferably projects or is directed towards the interior space in aplurality of steps having riser and tread portions, the riser portionsgenerally project in a direction substantially upward relative to theouter planar portion and the tread portions are approximately parallelto the outer planar portion. The plurality of these riser and treadsteps further contemplate multiple variations.

In one version, the steps are stiffened by thickening in a cross-sectionto resist deformation due to pressure changes relative to the pressureinside the sealed container. In another complementary version that canbe used alone or in combination with the stiffened variation, anaccordion or bellowed type arrangement of the steps or series of stepsare included, which flex or deform in response to pressure changesexternal to the sealable container so as to lessen the net pressuredifferential between the interior of the sealable container and theambient outside pressure.

In still other variations of the embodiments of the invention, asealable container includes a top wall, a bottom wall, a front wall, arear wall, a first side wall, and a second side wall. Each of the wallshas a substantially rectangular shape. The rectangular shape of eachwall enables the container to be stored easily on a shelf orcounter-top. The top wall and portions of the front wall, the rear wall,the first side wall, and the second side wall form a lid. The lid ispivotally attached to the rear wall by a hinge. The lid can be opened byrotation thereof about the hinge. The front wall has at least one recessand the rear wall has at least one recess. The at least one recess ofthe front wall and the at least one recess of the rear wall are adjacentto the first side wall. The recesses provide a grip feature, whichenables the user to manipulate the lid of the container with one handwhen the container rests on a flat surface, e.g., a tabletop or acounter top. The container is preferably made of a polymeric material.

The container provided herein is suitable for holding granular materialor powdered material, the container having a scoop furnished therewith.The scoop has a handle and a bowl. The interior of the container ischaracterized by having corners that are congruent with the bowl of thescoop furnished with the container. The congruency of the bowl of thescoop with the corners of the container enables the user to remove thelast bit of powder remaining in the container. A flexible seal can beapplied to the interior of the container to provide a substantiallymoisture-impervious, oxygen-impervious seal for the granular material orpowdered material.

The lid is furnished with a scoop holder, whereby the scoop can bestored outside the bulk of the contents of the container to enable easy,clean access to the contents of the container. The container can beopened and closed with a single hand.

These variations, modifications, and alterations of the variouspreferred and optional embodiments may be used either alone or incombination with one another and with the features and elements alreadyknown in the prior art and also herein described, which can be betterunderstood by those with relevant skills in the art with reference tothe following detailed description of the preferred embodiments and theaccompanying figures and drawings.

BRIEF DESCRIPTION OF THE DRAWING(S)

Without limiting the scope of the present invention as claimed below andreferring now to the drawings and figures, wherein like referencenumerals, and like numerals with primes, across the drawings, figures,and views refer to identical, corresponding, or equivalent elements,methods, components, features, and systems:

FIG. 1 is a perspective view of one embodiment of the containerdescribed herein. In this figure, the lid of the container is closed,and tamper resistance elements are shown; as is a side of the containerhaving a grip feature.

FIG. 2 is a perspective view of the embodiment of the container shown inFIG. 1 that depicts sides of the container not shown in FIG. 1,including a hinged side, and a side of the container having a gripfeature.

FIG. 3 is a perspective view, greatly enlarged, of the area designatedby the line 3-3 in FIG. 2. This figure shows a cut-away view of amechanical hinge.

FIG. 4 is an exploded perspective view of an assembly comprising acollar and a lid. The assembly of the collar and the lid can be appliedto a tub-shaped receptacle to form the container described herein.

FIG. 5 is a perspective view of a tub-shaped receptacle to which theassembly comprising the collar and the lid, shown in FIG. 4, can beapplied to form the container described herein.

FIG. 6 is a side view in elevation of the embodiment of the containershown in FIG. 1. This figure shows the front wall of the container,which has a grip feature.

FIG. 7 is an end view in elevation of the embodiment of the containershown in FIG. 1. This figure shows the first side wall of the container,which is adjacent to the grip features of the front wall and the rearwall of the container.

FIG. 8 is an end view in elevation of the embodiment of the containershown in FIG. 1. This figure shows the second side wall of thecontainer, which is not adjacent to the grip features of the front walland the rear wall of the container.

FIG. 9 is a top plan view of the interior of the embodiment of thecontainer shown in FIG. 1. In this figure, the lid is removed from thecontainer.

FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 1. Thisfigure illustrates the lid attached to the collar by means of a livinghinge to form an assembly thereof.

FIG. 11 is a cross-sectional view taken along line 11-11 in FIG. 1. Thisfigure illustrates a latch that can be used to maintain the lid in aclosed position.

FIG. 12 is a cross-sectional view taken along line 12-12 in FIG. 4. Thisfigure illustrates the lid attached (rather than exploded as in FIG. 4)to the collar of the assembly comprising the collar and the lid.

FIG. 13 is a perspective view of the open lid attached to the collar.This figure shows the interior surface of the lid incorporating anattached scoop holder and a restraint and standoff bracket for thehandle of the scoop. This figure further shows a substantiallymoisture-impervious, oxygen-impervious seal attached to the rim orsealing flange of the tub-shaped receptacle.

FIG. 14 is cross-sectional view taken along line 14-14 in FIG. 13. Thisfigure illustrates attachment of the substantially moisture-impervious,oxygen-impervious seal to the rim of the tub-shaped receptacle, and aguide fin securing the collar to the receptacle.

FIG. 15 is an exploded perspective view of the interior surface of thelid showing the scoop removed from the scoop holder and the restraintfor the handle of the scoop.

FIG. 16 is a top perspective view of another embodiment of the containerdescribed herein. In this figure, the domed container lid is closed anda side of the container includes grip features.

FIG. 17 is a bottom perspective view of the embodiment of the containerof FIG. 16, and rotated to show rear and bottom sides of the containerthat are not shown in FIG. 1.

FIG. 18 is a bottom plan view of the embodiment of the container ofFIGS. 16 and 17 showing features of the bottom wall of the containerthat include stepped pressure compensating riser and tread features.

FIG. 19 is a side elevation view of a first side wall of the embodimentof the container of FIG. 16 showing the front and rear grippingfeatures.

FIG. 20 is a partial top perspective view of the embodiment of thecontainer of FIG. 16 having the lid removed for purposes of illustratingthe collar and the arrangement of the impervious seal affixed andcovering the opening of the container.

FIG. 21 is another partial perspective view of the embodiment of thecontainer of FIG. 23 also having the gasket and impervious seal removedto illustrate the collar as it is retained on the tub-shaped receptacleof the container by engagement of flex clips in a plurality ofoppositely facing indentations.

FIG. 22 is a partial perspective view of the embodiments of thecontainer shown in FIGS. 20 and 21 having the collar and the imperviousseal removed to show the collar engagement indentation features of theupper portion of the receptacle.

FIG. 23 is a cross-section view of the upper end and sealing flange ofthe tub-shaped receptacle of the embodiment of the container of FIGS.20-22, which is taken along section line 23-23 of FIG. 22. Theimpervious seal has been added for improved illustration purposes.

FIG. 24 is a perspective view of the collar of the embodiments of thecontainer of FIGS. 16-22.

FIG. 25 is a cross-section view of the collar of the embodiment of thecontainer shown in FIG. 24 and taken along section line 25-25.

FIG. 26 is a cross-section view of the collar of the embodiment of thecontainer shown in FIGS. 16-22 and taken through a flex clip, i.e. alongsection line 26-26 of FIG. 24, but having certain additional lidstructure shown for illustration purposes.

FIG. 27 is a cross-sectional view of an alternative variation of thesealing wall illustrated in FIG. 26.

FIG. 28 is a cross-sectional view of another alternative variation ofthe sealing wall illustrated in FIG. 26.

FIG. 29 is a top plan view of the embodiment of the container of FIGS.16-19 showing the top wall including the lid and cover assembly.

FIG. 30 is a perspective view of the underside of the lid of theembodiment of the container of FIGS. 16-19 and illustrating a scoopholder retaining a scoop.

FIG. 31 is a perspective view of the underside of the lid of FIG. 30having the scoop removed for further illustration of the scoop holder.

FIGS. 32 and 33 are perspective views of the scoop in differentorientations to show alternative variations of the congruent rim of thebowl of the scoop.

FIG. 34 is a section view of the lid of the embodiment of the containerof FIG. 29 and taken along section line 34-34 to show a laterallyextending cross section of the domed and angled wall lid variation.

FIG. 35 is a section view of the lid of the embodiment of the containerof FIG. 29 and taken along section line 35-35 with a view directedtowards retainer elements of the scoop holder.

FIG. 36 is a section view of the lid of the embodiment of the containerof FIG. 29 and taken along section line 36-36 with a view directedtowards the scoop holder bowl brackets.

FIG. 37 is a section view of the embodiment of the container of FIG. 18,and taken along section line 37-37, which depicts the bottom pressurecontrol, centralized stiffener, and/or stepped portion modification tothe bottom of the receptacle.

FIGS. 38 a and 38 b are detail views taken about detail view lines 38 inFIG. 37 and illustrate alternative flexible and pressure responsive,decreased thickness cross-sectional configurations of the centralizedstiffener or stepped portion of the bottom of the receptacle.

FIGS. 39 a and 39 b are detail views taken about detail view lines 39 inFIG. 37 and illustrate another alternative flexible and pressureresponsive, bellows and/or pleated cross-sectional configuration of thecentralized stiffener or stepped portion of the bottom of thereceptacle.

DETAILED DESCRIPTION OF CERTAIN EMBODIMENTS AND VARIATIONS

As used herein, the expression “top wall” means the side of thecontainer exclusive of the bottom wall, the first side wall, the secondside wall, the front wall, and the rear wall of the container. Althoughit is somewhat arbitrary which wall is designated front or rear or side,for purposes of consistency, “rear” is generally used for a wall with ahinge and “front” is used for a wall with a latch mechanism. The term“lid” means a hinged cover for a hollow receptacle and is intended toinclude either an independently formed and removable lid and othervariations that can include the lid alone, the lid and collar assembly,and other variations wherein the lid and/or collar are formed from thetop wall of the container plus the upper portion of the first side wall,the upper portion of the second side wall, the upper portion of thefront wall, and the upper portion of the rear wall of the container. Asused herein, the term “bracket” means a wall-anchored fixture adapted tosupport a load.

Referring now to FIGS. 1, 2, and 5-9, a container 10 includes a top wall12, a bottom wall 14 with an interior bottom surface 14 a, a front wall16, a rear wall 18, a first side wall 20, a second side wall 22. Thefront wall 16 comprises an interior major surface 16 a, an exteriormajor surface 16 b, an upper portion 16 d, and a lower portion 16 e. Therear wall 18 comprises an interior major surface 18 a, an exterior majorsurface 18 b, an upper portion 18 d, and a lower portion 18 e. The firstside wall 20 comprises an interior major surface 20 a, an exterior majorsurface 20 b, an upper portion 20 d, and a lower portion 20 e. Thesecond side wall 22 comprises an interior major surface 22 a, anexterior major surface 22 b, an upper portion 22 d, and a lower portion22 e.

Although the container 10 and the later described variations anmodifications thereto are illustrated in the various descriptions andfigures to be substantially cuboid, a cuboid shape is depicted onlybecause such a shape is sometimes found by those skilled in the relevantarts to be the more challenging type of container to describe,manufacture, and to use. However, the present invention is susceptiblefor use with all shapes and sizes of containers including cylindrical,obloid, rectilinear, and other shapes, and for use with containersadapted for fluids as well as for the powdered materials and/or productdescribed most often herein. Furthermore, each of the optional andpreferred embodiments of the invention contemplate interchangeabilitywith all of the various features, components, modifications, andvariations illustrated throughout the written description and pictorialillustrations.

As can be seen in FIGS. 1, 2, and 4, in an exemplary embodiment of theinvention, an assembly of a lid and a collar of the container 10, whichare discussed here and in the context of other variations elsewhereherein, is formed from and/or includes a part of the top wall 12 and theupper portion 16 d of the front wall 16, the upper portion 18 d of therear wall 18, the upper portion 20 d of the first side wall 20, and theupper portion 22 d of the second side wall 22. The lid and the collarvariations contemplated here may be formed integrally with the walls,may be formed as an integral lid and collar assembly and/or combination,and may also be provided as a separate lid and a separate collar thatcan be joined with a hinge or another type of pivotally and/or removabledevice or connection to one or more portions of the walls. As will bedescribed in more detail below, the lid and collar arrangements can beattached and assembled to the inventive containers in a variety of waysincluding clips, friction-fit configurations, and using other equallydesirable and optional components and methods.

The lid is also described in more detail below in connection with thevarious embodiments of the invention and will hereinafter be referred toby the reference characters “L” and “D” (see FIGS. 1, 2, 4, and 29-31)to refer to the various embodiments and variations thereof. Focusinginitially on the lid “L” of the version illustrated in FIGS. 1, 2, and4, lid “L” has an interior surface, which will hereinafter be referredto by the reference character “Li”. The lid also has an exteriorsurface, which will hereinafter be designated by the reference character“Le”. A hinge 24 attaches the lid “L” to the rear wall 18.

The front wall 16 has a recess 26 a positioned to facilitate gripping ofthe container 10 by the left thumb of the user. The rear wall 18 alsohas a recess 26 b positioned to facilitate gripping of the container 10by the fingers of the left hand of the user. The recess 26 a can furtherhave an additional recess 27 a to indicate the precise location in therecess 26 a for the placement of the thumb of the user. The recess 27 ais smaller in area than the recess 26 a. The recess 27 a is preferablycircular in shape, but other shapes are also acceptable. The recess 26 bcan further have an additional recess 27 b to indicate the preciselocation in the recess 26 b for the placement of the desired finger ofthe user. The recess 27 b is smaller in area than the recess 26 b. Therecess 27 b is preferably circular in shape, but other shapes are alsoacceptable. The recesses 26 a and 26 b are positioned adjacent to thefirst side wall 20 of the container 10.

In an alternative embodiment (not shown), the recesses 26 a, 27 a, 26 b,and 27 b can be positioned to facilitate gripping of the container 10 bythe right thumb of the user and by the fingers of the right hand of theuser. In this alternative embodiment, the recesses would be positionedadjacent to the second side wall 22 of the container 10.

In still another alternative (not shown), the front wall 16 can have tworecesses and the rear wall 18 can have two recesses, one recess on thefront wall 16 and one recess on the rear wall 18 positioned tofacilitate gripping of the container 10 by the left thumb and thefingers of the left hand of the user and one recess on the front wall 16and one recess on the rear wall 18 positioned to facilitate gripping ofthe container 10 by the right thumb and the fingers of the right hand ofthe user. In this embodiment, pairs of recesses would be positionedadjacent to both the first side wall 20 and the second side wall 22.

The hinge 24 is preferably designed in such a manner that when the lid“L” of the container 10 is opened to enable the user to obtain access tothe contents of the container 10, the lid “L” will not fall forward tothe closed position. Further, the lid “L” will not fall too far backwardbeyond the open position desired, which would cause a container 10, whennearly empty, to tip over onto the rear wall 18. The hinge 24 can be aliving hinge or a conventional mechanical hinge. A living hinge is athin flexible web of material that joins two rigid bodies together. Inthis case, the living hinge connects two segments of an object, i.e.,the lid “L” and the rear wall 18 of the container 10, to keep thesegments together and allow the object to be opened and closed.

The material used to make a living hinge is preferably a very flexiblepolymeric material, such as, for example, polypropylene andpolyethylene. Living hinges can be flexed numerous times withoutfailure. Living hinges are described in more detail athttp://www.efunda.com/designstandards/plastic_design/hinge.cfm, Nov. 6,2006, pages 1-3 and athttp://engr.bd.psu.edu/pkoch/plasticdesign/living_hinge.htm, Nov. 6,2006, pages 1-8, both of which are incorporated herein by reference.

Conventional mechanical hinges include, but are not limited to, hingeassemblies comprising a first panel having two or more sockets mountedon an edge thereof and a second panel having two or more pins mounted onan edge thereof, the aforementioned pins mating with the aforementionedsockets to join the edge of the first panel to the edge of the secondpanel, the pins and the sockets allowing rotation of the first panelabout the second panel. Conventional mechanical hinges are described inmore detail in http://www.hardwaresource.com/index.asp, see “otherhinges”, Dec. 26, 2006, incorporated herein by reference.

Another type of equally suitable mechanical hinge can be seen withreference to FIGS. 16-21, 24, and 29-31, among other figures anddescription discussed elsewhere herein.

The top wall 12, the bottom wall 14, the front wall 16, the rear wall18, the first side wall 20, and the second side wall 22 enclose a hollowinterior space “H” (FIGS. 5, 9) into which a product can be inserted.While the hollow interior space “H” can hold any solid or liquidproduct, the particular product for which the container 10 is designedis typically a flowable solid material, such as, for example, a powderedproduct and/or a granular product. Representative examples of such apowdered product or granular product include, but are not limited to,infant formula, flour, coffee, and sugar.

Referring now to FIGS. 13, 14, 20, 23, and 26, a substantiallymoisture-impervious, oxygen-impervious seal 28 is attached to theinterior major surfaces 16 a, 18 a, 20 a, 22 a of the front wall 16, therear wall 18, the first side wall 20, and the second side wall 22,respectively. The substantially moisture-impervious, oxygen-imperviousseal 28 can be formed from a sheet of material substantially imperviousto oxygen, moisture, and light. A material suitable for use in preparingthe substantially moisture-impervious, oxygen-impervious seal 28 can bea sheet of foil, such as, for example, aluminum foil, or a foil made ofsome other metallic material, or a combination of a layer of materialsthat can include a metallic, a polymeric, and other material layers.Optionally, the substantially moisture-impervious, oxygen-imperviousseal 28 can also be impervious to light. A pull-tab 28 a on thesubstantially moisture-impervious, oxygen-impervious seal 28 can be usedto facilitate removal of the seal 28 by the user.

In one embodiment, the substantially moisture-impervious,oxygen-impervious seal 28 be applied at a position near the edges of theupper portion 16 d of the front wall 16, the upper portion 18 d of therear wall 18, the upper portion 20 d of the first side wall 20, and theupper portion 22 d of the second side wall 22 on the interior majorsurfaces 16 a, 18 a, 20 a, 22 a, of the front wall 16, the rear wall 18,the first side wall 20, and the second side wall 22, respectively, ofthe container 10. The substantially moisture-impervious,oxygen-impervious seal 28 can be removed by pulling the pull-tab 28 a ofthe seal 28 and removing the seal 28 from the positions of attachment tothe interior major surfaces 16 a, 18 a, 20 a, 22 a, of the front wall16, the rear wall 18, the first side wall 20, and the second side wall22, respectively, of the container 10.

Referring now to FIGS. 13, 15, 30-31, 35, and 36, attached to theinterior surface “L_(i)” of the lid “L” (and an interior surface “D_(i)”of later described lid “D”) is a scoop holder 30. The scoop holder 30comprises a first bracket 30 a and a second bracket 30 b. The scoopholder 30 is capable of retaining a scoop 32 in such a position so as tobe separated from the product. The scoop 32 comprises a handle 34attached to a bowl 36 wherein the handle may incorporate a stiffener 34b (FIGS. 330, 32-33). Other variations of equally preferred andoptionally desirable scoops 30 are discussed below and can be seen withreference to FIGS. 30, 32, and 33, and in other places elsewhere herein.

The scoop 32 is positioned in the first bracket 30 a and the secondbracket 30 b in such a manner that the user is induced to remove thescoop 32 by the handle 34, rather than by the bowl 36. Furthermore, thefirst bracket 30 a and the second bracket 30 b are positioned so thatthe scoop 32 is held by the first bracket 30 a and the second bracket 30b in such a manner as to prevent the powdered product or granularproduct from entering the bowl 36 of the scoop 32.

As discussed elsewhere, this feature is of particular benefit to usersof the containers of the invention in view of the fact that suchcontainers are subjected to unpredictable amounts of jostling, shaking,upside-down or inverted shipment by truck, car, and mail carrier, andimpacts during manufacture, distribution, and daily use by consumers.Such a container is possibly subject to a higher level of abuse inenvironments involving children and child care, such as where a parentcarries a powdered product in a container such as those described hereinin an automobile and/or in a heavily-used diaper bag, both of which canexperience the ravaging abuse of curious children at play.

The first bracket 30 a of the scoop holder 30 covers the opening in thebowl 36 of the scoop 32, thereby preventing the product in the containerfrom entering the bowl 36 of the scoop 32, which could lead toscattering product outside of the container upon removal of the scoop 32from the scoop holder 30. The bowl 36 of the scoop 32 does not interferewith substantially moisture-impervious, oxygen-impervious seal 28 whenthe scoop 32 is positioned in the scoop holder 30. The scoop holder 30is positioned in such a manner that the handle 34 of the scoop 32 isprevented from contacting the substantially moisture-impervious,oxygen-impervious seal 28 positioned over the contents of the container,thereby protecting the integrity of the seal 28. In addition, the scoopholder 30 prevents the handle 34 from being dislodged and maintains theposition of the scoop 32 during shipping and storage.

As shown in FIGS. 13 and 15, the scoop 32 can be inserted into the scoopholder 30 by sliding the bowl 36 of the scoop 32 into the opening 30 cbetween the first bracket 30 a and the second bracket 30 b. Wheninserted into the scoop holder 30, the scoop 32 is retained by the firstbracket 30 a and the second bracket 30 b by means of a friction fit. Thescoop 32 can be attached to the lid “L” by aligning the bowl 36 of thescoop 32 with the first bracket 30 a and the second bracket 30 b of thescoop holder 30 and sliding the bowl 36 of the scoop 32 against thefirst bracket 30 a and the second bracket 30 b of the scoop holder 30,thereby generating a friction fit between the bowl 36 of the scoop 32and the scoop holder 30.

An optional, but desirable, feature of the lid “L” is a restraint 38 forpreventing the handle 34 of the scoop 32 from rotating if the connection(i.e., the friction fit) between the scoop holder 30 and the bowl 36 ofthe scoop 32 loosens sufficiently to allow the bowl 36 of the scoop 32to rotate in the scoop holder 30, thereby allowing the handle 34 of thescoop 32 to contact the substantially moisture-impervious,oxygen-impervious seal 28 and possibly puncture the seal 28.

As shown in FIGS. 13, 15, and 30-31, the aforementioned restraint 38comprises a first projection 40 rising upwardly from the interiorsurface “L_(i)” of the lid “L” and having a notch 42 at one end thereoffor receiving an edge 34 a of the handle 34 of the scoop 32. Theaforementioned restraint 38 further comprises a second projection 44positioned between the scoop holder 30 and the first projection 40 andrising upwardly from the interior surface “L_(i)” of the lid “L”. Thesecond projection 44, which is of greater length than the firstprojection 40, has a keeper 46 formed at one end thereof to prevent thehandle 34 of the scoop 32 from moving downwardly toward thesubstantially moisture-impervious, oxygen-impervious seal 28 if the bowl36 of the scoop 32 rotates in the scoop holder 30.

The first projection 40 need not exhibit any level of flexibility, butthe second projection 44 should be sufficiently flexible that it can bemoved sufficiently by the handle 34 of the scoop 32 when the scoop 32 isbeing returned to the scoop holder 30 and the restraint 38. As can beunderstood with continued reference to FIGS. 15, 30, and 31, theupwardly rising first projection 40 cooperates with the secondprojection and restraint 44 to releasably capture and hold the handle 34of the scoop 32 at a distance above the interior surface “L_(i)” of thelid “L” (and, the interior surface “D_(i)” of the alternative lid “D”).In this way, the user can easily grasp the handle 34 because a graspingposition is maintained to enable convenient removal by a user, which isillustrating in FIGS. 15, 30, and 31, among other places. The handle ismaintained at a stand-off distance in the grasp position, which isestablished by the height of first projection 40 between the handle 34and the interior surfaces “L_(i)” and “D_(i)”.

The bowl 36 of the scoop 32 has a rim 36 a with a cross-sectionalgeometry that is shaped to be congruent with the junctions or corners 50a, 50 b, 50 c, and 50 d, formed by the junctions between the front wall16 and the first side wall 20 and the bottom wall 14, the front wall 16and the second side wall 22 and the bottom wall 14, the rear wall 18 andthe first side wall 20 and the bottom wall 14, and the rear wall 18 andthe second side wall 22 and the bottom wall 14, respectively. Thecorners or junctions 50 a, 50 b, 50 c, and 50 d are shown in FIG. 9 andare also evident from the exterior views of FIGS. 1, 2, and 5-8. Theshape of the corners 50 a, 50 b, 50 c, and 50 d and the shape of the rim36 a of the bowl 36 of the scoop 32 enable the maximum quantity ofproduct to be removed from the container 10 by the scoop 32, withouthaving to invert or to turn the container 10 over to pour out theproduct.

As shown in FIG. 9, the corners 50 a, 50 b, 50 c, and 50 d have aparticular cross-sectional geometry and are preferably rounded, and aremore preferably formed with the radius of each corner 50 a, 50 b, 50 c,and 50 d being approximately equal to the radius of the rim 36 a of thebowl 36 of the scoop 32. In an alternative embodiment (FIG. 32, corner50 f), the corners can have other shapes, e.g., the corners 50 a, 50 b,50 c, and 50 d and the corners or junctions between the bottom wall 14and the walls 16, 18, 20, and 22 can meet to form right angles. The rim36 a of the bowl 36 can be formed with a portion of the rim having aright angle (see, e.g., FIGS. 32 & 33) that is generally congruent tothat of the contemplated right angles of the corners or junctionsbetween the walls 16, 18, 20, and 22 themselves and between the bottomwall 14 and the walls 16, 18, 20, and 22.

In still another embodiment (see exemplary scoop variation in FIG. 33),the corners 50 a, 50 b, 50 c, and 50 d can have three sides, with two120° angles forming each corner. In these alternative embodiments, thebowl 36 of the scoop 32 would have a shape and/or a rim portion 36 c(FIG. 33) that would be congruent with the shape of each corner 50 a, 50b, 50 c, and 50 d. See also, for example, the analogous variation of aright angle scoop rim and wall junction illustrated in FIG. 32. Infurther optional or preferred arrangements, the walls 16, 18, 20, 22join the bottom wall 14 to also have the particular cross-sectiongeometry and are also more preferably rounded, and are even morepreferably formed with radius similar to that of each corner 50 a, 50 b,50 c, 50 d to be approximately equal to the radius and/or to have ashape congruent to that of the bowl 36 of the scoop 32. In any of theseillustrative embodiments, those skilled in the art may comprehend fromthe discussion elsewhere herein that the material used to form thecontainer 10 and the scoop 32 and/or the bowl 36 of the scoop may be ofa flexible polymeric material that can enable the rim 36 a of the bowl36 to flex and/or to deform either a small or a more generous amount. Inthis way the cross-sectional geometry of the rim 36 a can, during use,be biased against the junctions or comers in a way whereby the rim 36 amore readily conforms to the particular cross-sectional geometry tomaximize the ease of removal of the contents from the hollow interiorspace “H”. In FIGS. 32 and 33 examples of congruently shaped bowls 36are shown. In FIG. 32, the rim has a portion 36 b arranged to have aright angle that can conform to and be congruent with a corner 50 f of acontainer having a similar right-angled wall junction. In FIG. 33, therim has a multi-angled rim 36 c wherein multiple obtuse angles areformed to be congruent with a similarly shaped wall junction (not shown,but similar in concept to wall junction 50 f of FIG. 32).

The shape of the bottom wall 14 of the container 10 and the shape of thetop wall 12 of the container 10 can be designed to enable a plurality ofcontainers 10 to be stacked, one upon another, such as, for example, ona shelf in a grocery store. It is preferred that the shape of theperimeter of the bottom wall 14 of the container 10 be substantiallysimilar to the shape of the perimeter of the top wall 12 of thecontainer 10. The top wall 12 can be flat or contoured and the bottomwall 14 can be flat or contoured. Generally, if the top wall 12 iscontoured, the bottom wall 14 must also be contoured in such a manner asto be substantially congruent with the top wall 12, so that a pluralityof containers 10 can be stacked one on top of another.

However, so long as the lid “L” is flat, the containers 10 will bestackable even if the bottom wall 14 of the container 10 is not flat,provided that the bottom wall 14 of the container 10 is designed so thatthe top wall 12 of the container 10 remains in a horizontal orientationrelative to a horizontal shelf. In FIGS. 1, 2, 4, 10-12, and in FIGS.16, 19, 30-31, and 34-36, it can be seen that the top wall 12 (or alsotop wall 212) of the container 10 (or the container 210) is convex inshape. Accordingly, for the embodiment shown in FIGS. 1 and 2, thebottom wall 14 of the container 10 is preferably concave in shape, sothat a plurality of containers 10 can be stacked one upon another.

The rectangular shape of the container 10, in combination with therecesses 26 a and 26 b for gripping, enables the user to hold thecontainer 10 with one hand, while using the scoop 32 with the otherhand. The shape of the container 10 enables ease of access to theproduct during the act of removing the product from the container 10 bymeans of the scoop 32.

The shape of the container 10 enables the lid “L” to be securely fittedto the upper portions 16 d, 18 d, 20 d, and 22 d, of the front wall 16,the rear wall 18, the first side wall 20, and the second side wall 22,respectively, of the container 10.

Referring now to FIGS. 1, 4, and 11, (and to FIGS. 16 and 19 forillustrations of later discussed embodiments and variations thereto) acontainer-locking feature 52 associated with the lid “L” and the frontwall 16 enables the lid “L” to be securely, and robustly fitted to theedges of the upper portions 16 d, 18 d, 20 d, and 22 d, of the frontwall 16, the rear wall 18, the first side wall 20, and the second sidewall 22, respectively, of the container 10 over a range of thedimensional tolerances of the container 10. The container-lockingfeature 52 comprises a latch 54 having a tab or flap 56, a first edge 58a and a second edge 58 b.

A first bridge 60 a and a second bridge 60 b project from the first edge58 a and the second edge 58 b of the latch 54, respectively. The firstbridge 60 a comprises a small stem 62 a at one end of which is a knob 62b; the second bridge 60 b comprises a small stem 64 a at one end ofwhich is a knob 64 b. The knobs 62 b and 64 b and portions of the smallstems 62 a and 64 a fit into small recesses (not shown) in the exteriorsurface “L_(e)” of the lid “L”, which small recesses are congruent withthe bridges 60 a and 60 b, and are prevented from being removed from therecesses (not shown) by friction, until the latch 54 is opened for thefirst time. The function of the bridges 60 a and 60 b is to indicate anytampering with the latch 54. Referring now to FIG. 11, the tab or flap56 of the latch 54 is attached to the front wall 16 by a hinge 68,typically a living hinge, which connects the tab or flap 56 to anelement 70 projecting from the exterior major surface 16 b of the frontwall 16.

When the latch 54 is in a non-tampered state, the first bridge 60 a andthe second bridge 60 b retain their integrity. Prior to being used, thetab or flap 56 is maintained in a closed position by gripping a keeper72, which is formed into a recessed portion 74 of the exterior majorsurface 16 b of the front wall 16. When the latch 54 is opened byrotating the tab or flap 56 from its initial unopened position to asecond position away from the keeper 72, the pull force breaks the smallstems 62 a and 64 a, thereby allowing the lid “L” of the container 10 tobe lifted upwardly so that the lid “L” can rotated about the hinge 24(see FIG. 2) to enable the user to obtain access to the interior of thecontainer 10.

If the user finds that extremely little pulling force is required tobreak the small stems 62 a and 64 a of the bridges 60 a and 60 b,respectively, the consumer will suspect that tampering with the latch 54has taken place. After the small stems 62 a and 64 a are broken, theknobs 62 b and 64 b help to retain the remaining portions of the brokenbridges 60 a and 60 b in the recesses in the exterior surface “L_(e)” ofthe lid “L”. In order to close the lid “L” of the container 10 after agiven use, the lid “L” is rotated downwardly so that the edges of thelid “L” come into contact with the edges of the upper portions 16 d, 18d, 20 d, and 22 d of the front wall 16, the rear wall 18, the first sidewall 20, and the second side wall 22, respectively, of the container 10,whereupon the tab or flap 56 of the latch 54 can grip the keeper 72 tomaintain the container 10 in a closed position until the user desires toopen the container 10 at a later time. Even more preferably, the latch54 engages and disengages with a click that can be perceived both bytactile as well as auditory feedback, which give the user additionalcues regarding the open or closed state of the lid “L” and the contained10.

As shown in FIGS. 1 & 16, a tamper-indicating seal 76 can be adhered tothe front or another place on the container to present evidence oftampering, damage, or other circumstance. In FIG. 1, the tamper seal 76is affixed to wall 16 and the lid “L” of the container 10 to provide avisual indication as to whether the container 10 has been opened priorto being sold. In one embodiment, the tamper-indicating seal 76comprises a backing 76 a adhered to a layer of adhesive (not shown). Thebacking 76 a can be a sheet of tearable paper or tearable polymericmaterial. The adhesive can be a moderately to highly aggressiveadhesive. The tamper seal 76 can be positioned in a number of equallyeffective locations, including for purposes of example withoutlimitation, across the interface between the lids and walls as well asin appropriate locations across the contemplated assemblies of collarsand lids.

It is preferred that a score line or a line of perforations be presentin the backing 76 a of the tamper-indicating seal 76 at the line wherethe lid “L” meets the upper portion 16 d of the front wall 16 of thecontainer 10. An attempt the open the container 10 will result intearing the backing 76 a along the score line or the line ofperforation, thereby indicating visually an unauthorized attempt to openor an actual opening of the container 10.

The dimensions of the container 10 and the components thereof are notcritical. However, for the purpose of illustration, typical dimensionsof the various components can be as follows:

Top wall 12 and bottom wall 14: 4 in. to 5 in.×5.5 in to 6.5 in.

Front wall 16 and rear wall 18: 5.5 in. to 7.5 in.×5.5 in. to 6.5 in.

First side wall 20 and second side wall 22: 4 in. to 5 in.×5.5 in. to7.5 in.

Volume of container 10 to contain powder weights of: 10 to 60 oz.; moretypically 20 to 40 oz.; for example 23 oz. to 34 oz.

There are numerous methods of making the container 10 described herein.However, in order to facilitate mass production of containers having avariety of volumes, the container 10 can be assembled in a variety ofequally suitable ways and by using any of a number of effective andoptionally preferred mechanisms. For purposes of illustration withoutlimitation, the exemplary configurations shown here contemplatefriction-fit, clip, and similar types of lid-collar-container assemblydevices. Such examples can be seen in the various figures including inFIGS. 4-8, and later in other variations and modifications of theembodiments of the invention depicted in FIGS. 16-28.

Referring now to FIGS. 4, 5, 6, 7, and 8, a tub-shaped receptacle 80comprising the bottom wall 14, the lower portion 16 e of the front wall16, the lower portion 18 e of the rear wall 18, the lower portion 20 eof the first side wall 20, and the lower portion 22 e of the second sidewall 22 can be provided by a supplier. The lower portion 16 e of thefront wall 16, the lower portion 18 e of the rear wall 18, the lowerportion 20 e of the first side wall 20, and the lower portion 22 e ofthe second side wall 22 typically comprise about from about 60% to about90% of the height of the aforementioned front wall 16, rear wall 18first side wall 20, and second side wall 22, respectively.

An assembly 82 comprising a collar 84 and the lid “L” (alternativelyreferred to herein as “collar/lid assembly 82”) can be provided by asupplier. The collar/lid assembly 82 comprises the top wall 12, theupper portion 16 d of the front wall 16, the upper portion 18 d of therear wall 18, the upper portion 20 d of the first side wall 20, and theupper portion 22 d of the second side wall 22. The upper portion 16 d ofthe front wall 16, the upper portion 18 d of the rear wall 18, the upperportion 20 d of the first side wall 20, and the upper portion 22 d ofthe second side wall 22 typically comprise from about 10% to about 40%of the height of the front wall 16, rear wall 18 first side wall 20, andsecond side wall 22, respectively.

The ratios for the lower portion 16 e of the front wall 16, the lowerportion 18 e of the rear wall 18, the lower portion 20 e of the firstside wall 20, and the lower portion 22 e of the second side wall 22 andthe ratios for the upper portion 16 d of the front wall 16, the upperportion 18 d of the rear wall 18, the upper portion 20 d of the firstside wall 20, and the upper portion 22 d of the second side wall 22primarily depend upon the volume of the container 10, which in turndepends upon the volume of the tub-shaped receptacle 80. The size of theassembly 82 of the collar and lid essentially remains constant, but thevolume of the tub-shaped receptacle 80 varies to provide containers ofvarious volumes.

Various attachment methods for securing the collar and lid assembly tothe receptacle are contemplated by the invention, and combinations andvariations may be found to be equally suitable and can be interchangedas needed as can be better understood with reference to FIGS. 3-4,10-14, and 16-36. Referring first to FIGS. 3-4 and 10-14, those skilledin the art will see that in one variation of the preferred embodimentsof the invention, each corner 84 a, 84 b, 84 c, and 84 d of the collar84 has at least one guide fin 86 a, and preferably two guide fins 86 a,86 b, to properly align the collar 84 with the tub-shaped receptacle 80.The tub-shaped receptacle 80 is made up of the bottom wall 14 and thoseportions of the front wall 16, the rear wall 18, the first side wall 20,and the second side wall 22 that are not made up of the upper portions16 d, 18 d, 20 d, and 22 d of the front wall 16, the rear wall 18, thefirst side wall 20, and the second side wall 22, respectively, whichupper portions 16 d, 18 d, 20 d, and 22 d make up the collar 84. FIGS. 5though 8 show a plurality of indentations as a continuous groove 90about the receptacle 80.

The collar 84 is joined to the tub-shaped receptacle 80 by aligning theguide fins 86 a, 86 b in each corner 84 a, 84 b, 84 c, and 84 d of thecollar 84 with the corners 80 a, 80 b, 80 c, and 80 d located at asealing flange or rim 88 of the tub-shaped receptacle 80 andpress-fitting the collar 84 to the tub-shaped receptacle 80, such thatthe attaching means or fins 86 a, 86 b, etc., are secured in the groove90 of the receptacle 80. The sealing flange or rim 88 terminates in aninternal edge 89 that defines an opening to the hollow interior space“H”.

The guide fins 86 a, 86 b in each corner 84 a, 84 b, 84 c, and 84 d ofthe collar 84 snugly fit into a groove 90 running around the exteriorperiphery of the tub-shaped receptacle 80. The groove 90 has a downwardfacing surface that engages an upward facing edge of the fins 86 a, 86b, etc. After the collar 84 is joined to the tub-shaped receptacle 80,the tamper-indicating seal 76 is applied to the front wall 16 and thelid “L” of the container 10. The later-described attachment meansillustrated in FIGS. 16-29 are also contemplated for use in the instantembodiments and modifications thereto. The instant described attachmentfeatures are similarly susceptible for use with the later describedembodiments discussed below.

The position of the substantially moisture-impervious, oxygen-imperviousseal 28 inside of the container 10 is a matter of choice. In oneembodiment, the substantially moisture-impervious, oxygen-imperviousseal 28 can be applied directly to the sealing flange or rim 88, whichis an attach surface running around the periphery of the tub-shapedreceptacle 80 by means of an adhesive, typically a heat-sealableadhesive. See FIGS. 14, 20, 23, and 26. In another embodiment, the seal28 can be applied to the interior walls 16 a, 18 a, 20 a, and 22 a ofthe front wall 16, the rear wall 18, the first side wall 20, and thesecond side wall 22, respectively, of the container 10 at a positionlower than the rim 88 running around the periphery of the tub-shapedreceptacle 80 of the container 10, such as, for example, at a pointapproximately midway or lower on the groove 90 that runs around theperiphery of the tub-shaped receptacle 80. This embodiment (not shown)may call for custom attaching equipment, but may be desirable becausemovement of granular product into cracks and fissures between thetub-shaped receptacle 80 and the collar 84 can be further reduced.

The use of a living hinge or a mechanical hinge for pivotally and/orhingedly joining the lid “L” to the collar 84 is also a matter ofchoice. Referring now to FIGS. 2 and 3, in one embodiment employing amechanical hinge 100 (see FIG. 3 and also FIGS. 16-19, 24, and 29-31),pins can be molded into projections 102 a, 102 b, respectively, risingupwardly from the upper rear edge 104 of the collar 84. Theseprojections 102 a, 102 b can be molded so as to be flush with theexterior surface of the collar 84. FIG. 3 shows the projection 102 a ingreater detail. The projection 102 a has a pin 106 a formed thereon bymolding. The projection 102 b also has a pin formed thereon by molding.

While the pin on the projection 102 b is not shown, it is the mirrorimage of the pin 106 a. Sockets can be formed in the lid “L” to receiveand retain the pins of the projections 102 a, 102 b. FIG. 3 shows thesocket 108 a for receiving the pin 106 a. While the socket for receivingthe pin of the projection 102 b is not shown, it is the mirror image ofthe socket 108 a. The lid “L” can be molded in such a manner that thesockets are not visible from the exterior of the container 10. Inaddition, the lid “L” can be molded in such a manner that recesses 110a, 110 b are provided therein so that the pin-bearing projections 102 a,102 b can be flush with the exterior surface of the lid “L”.

In addition, the shape of the rear edge 112 of the lid “L” and the shapeof the upper rear edge 104 of the collar 84 can be designed in such amanner that when the lid “L” is fully opened, the lid “L” will besupported by the upper rear edge 104 of the collar 84 at a specifiedangle, such as, for example, 120°, so that the user can obtain access tothe contents of the container 10 without being restricted by thepresence of the lid “L”. In the particular embodiment shown in FIG. 2,two projections, each projection bearing a pin, and two sockets can beused.

Any and all of the preceding preferred embodiments and the modificationsand variations thereof may be incorporated in whole or in part to manyadditionally contemplated configurations of the container 10. Similarly,the many next to be discussed adaptations, variations, andmodifications, are contemplated for use with all of the precedingembodiments, alone, in part, and in combination. With continuedreference to FIGS. 1-15, and referring now also to FIGS. 16 through 22,another configuration of a sealing container according to the inventionis shown and identified generally by reference numeral 210, which isalso susceptible for use and to incorporate any or all of the previouslydescribed features, components, and modifications and variations of theinvention.

As with other embodiments, the sealing container 210 includes a top wall212, a bottom wall 214, a front wall 216, a rear wall 218, a first sidewall 220, and a second side wall 222, which together define an interiorspace “I”. Similar to other embodiments of the invention, the walls aredefined with interior and exterior surfaces and upper and lowerportions. The front wall 216 includes an interior surface 216 a, anexterior surface 216 b, an upper portion 216 d, and a lower portion 216e. The rear wall 218 has an interior surface 218 a, an exterior surface218 b, an upper portion 218 d, and a lower portion 218 e. The first sidewall 220 defines an interior surface 220 a, an exterior surface 220 b,an upper portion 220 d, and a lower portion 220 e. The second side wall222 includes an interior surface 222 a, an exterior surface 222 b, anupper portion 222 d, and a lower portion 222 e.

With reference now also to FIGS. 29-31 and 34-36, it may be understoodthat a lid of the container 210 may be a separate component, part of anassembly, and may also include and be formed as a part of the top wall212 and the upper portion 216 d of the front wall 216, the upper portion218 d of the rear wall 218, the upper portion 220 d of the first sidewall 220, and the upper portion 222 d of the second side wall 222.

An alternative configuration of the lid depicted here is referred togenerally by reference character “D”. The “domed” lid “D” has aninterior surface, which will hereinafter be referred to by the referencecharacter “D_(i)” (FIGS. 30-31). The lid also has an exterior surface,which will hereinafter be designated by the reference character “D_(e)”.The lid “D” may also be shaped to cooperate with the features of thebottom wall 214 to enable stacking of the containers 210 as described inearlier descriptions of the embodiments of the invention. Ascontemplated for use with this and the other previously and laterdescribed embodiments of the invention, the lid “D” is shown as aseparate component that is hingedly, rotatably, and/or pivotally connectto the containers of the invention. Even more preferably, the lid “D”may be connected to the later described collar for incorporation intothe variations of the embodiments of the invention.

An alternative hinge 224 may attach the lid “D” to the upper portion 218d of the rear wall 218. While any of the previously described hinges maybe incorporated in the embodiment contemplated by sealing container 210,the modified mechanical hinge 224 as shown in the various figures may beincorporated to replace or work in combination with any of the precedinghinges.

The modified variations of the sealing container 210 may alsoincorporate gripping features such as those previously described and asshown in FIGS. 16-19 and 21, wherein the front wall 216 has a recess 226a arranged to enable grasping or gripping of the container 210 by a leftthumb of the user. The rear wall 218 also has a recess 226 b positionedto facilitate gripping of the container 210 by the fingers of the lefthand of the user. The recess 226 a can further have an additional recess227 a to indicate the precise location in the recess 26 a for theplacement of the thumb of the user. The recess 227 a is smaller in areathan the recess 226 a. The recess 227 a is preferably circular in shape,but other shapes are also acceptable. The recess 226 b can further havean additional recess 227 b to indicate the precise location in therecess 226 b for the placement of the desired finger of the user. Therecess 227 b is smaller in area than the recess 226 b. The recess 227 bis preferably circular in shape, but other shapes are also acceptable.In FIGS. 16-19, the recesses 226 a and 226 b are positioned adjacent tothe first side wall 220 of the container 210. However, variations (notshown) will incorporate the recesses to be complemented by additionaland/or replacement recesses proximate the opposite second side 222.

With reference now also to FIGS. 13, 20-21, 23, and 26, thesubstantially moisture-impervious, oxygen-impervious seal 28 having apull tab 28 a is affixed to a position proximate to edges of the upperportions 216 d, 218 d, 220 d, 222 d of the walls 216, 218, 220, 222 asexplained in connection with previously described variations of thepreferred embodiments of the invention.

Referring now to FIGS. 30-33, attached to the interior surface “D_(i)”of the lid “D” is the previously described scoop holder 30 and scoop 32.A variation to earlier embodiments of the scoop 32 includes a stiffenedhandle 34 having a stiffener 34 b integrally formed thereon.Additionally, the first bracket bowl cover 30 a of the holder 30 may beprojected outward to a predetermined maximum dimension whereby multiplescoops 32 having different volumes of bowl 36 can be incorporated tomaximize convenience when dispensing different volumes of the contentsof the containers 10, 210.

In another preferred or optional variation to any of the precedingembodiments, and with reference to FIGS. 16-19, 20-22, and 26, thecontainer 210 may be formed from a tub-shaped receptacle 280 similar inconstruction to earlier described embodiments but may also incorporateupper portions 16 d, 18 d, 20 d, 22 d of walls 16, 18, 20, 22 having anupper end 282. The upper end 282 defines a sealing flange 284 having aninternal edge 286 that defines an opening to the interior space “I”.

In further preferred arrangements, the impervious seal 28 is seatedaround the upper end 282 to close and seal the opening and is removablyaffixed to the sealing flange 284. To improve accuracy and convenienceduring assembly and placement of the impervious seal 28 on the sealingflange 284, an optional snap bead 288 (FIGS. 23 & 26) may be formed onthe upper end 282 below the sealing flange. Such a snap bead 288 can beused as a shelf and/or seat that contacts the edges of the unattachedimpervious seal around the periphery of the container to keep theimpervious seal 28 in place and centered so that it can be attached withadhesive, heat sealing, or another means.

In the past, many containers were improperly sealed due to incorrectplacement of the seal before an adhesion step glues, melts, or otherwiseaffixes the impervious seal 28 to the sealing flange 284. Additionalvariations of any of the embodiments of the invention may also includeassembly improving features such as one or more engagement recesses orindentations 290 defined laterally separated by strengthening bridges292, a lower seat rib 294, and an upper lug ledge or downwardly facingtop surface 296. The spaced apart bridge 292 arrangement impartsimproved strength and rigidity capabilities to the upper end 282 of thereceptacle 280, which, in turn, improves the crippling strength of thecontainer and the rigidity of the upper end 282 when the collar 300 isfitted together with the receptacle 280.

Further preferred or optional variations to any of the precedingembodiments may include a modified collar 300 that can be bestillustrated with specific reference to FIGS. 16-21, 24, -28. The collar300 may be formed with a substantially J-shaped and/or U-shapedcross-sectional configuration. With reference to FIGS. 25 and 26, it canbe seen that the exemplary collar 300 has an upside-down U-shape and/orJ-shape, depending on the location of the section; U-shaped if sectionedthrough a flex clip 310 (described below) as in FIG. 26, but U-shaped ifsectioned elsewhere, as in FIG. 25.

The collar 300 includes an exteriorly or outwardly facing long wall 302that extends upward to join a substantially rounded portion 304 that mayhave an increased thickness if needed for stiffening the collar 300. Thesmall relative radius of the J-shaped section shown in the illustrationsenables excellent stress distribution and force load path communicationby way of a higher cross-sectional moment of inertia, which results in astiffened and stronger collar. The long wall 302 also forms a part ofthe upper portions 216 d, 218 d, 220 d, 222 d of the walls 216, 218,220, 222.

The rounded portion 304 extends further and downwardly to form aninteriorly or inwardly facing short wall 306. More preferably, therounded portion 304 will be formed to have a lip seat 305 that enablesalignment and improved engagement of the outermost edge 348 of lid “D”when it is closed onto the collar 300. See, for example, FIGS. 25-26.

The collar may also preferably incorporate engagement lugs or flex clips310 that are laterally spaced apart to correspond to the lateral spacingof the indentations 290. The flex clips 310 will incorporate an upwardlyfacing surface and/or a retainer face 312 and may also optionallyinclude a stiffening rib 314. During assembly, the collar 300 will becentered and secured to the receptacle 280 by the flex clips 310engaging a downward facing surface of the groove or plurality ofindentations 290; and thus arranged to fit on, overcap, and/or beinstalled upon the upper end 282 of the tub-shaped receptacle 280 sothat the flex clips 310 will bend outwardly slightly as the collar 300descends over the upper end 282.

Once the flex clips 310 are moved into a juxtaposition relationship withthe indentations 290, the flex clips 310 return to the nominalorientation and snap into position so that the retainer faces 312contact the downwardly facing top surfaces 296 to interlock the collar300 onto the receptacle 280. In this way, the collar 300 is aligned andcaptured and in a friction-fit and flex clip 310 engaged relationshipwith the tub-shaped receptacle 280. A bottom end 303 (FIG. 26) of theoutwardly facing long wall 302 will generally come into contact with andrest against the lower seat rib 294 of the receptacle 280, which incombination with the other features of the invention enables increasedstrength and rigidity.

The laterally spaced apart indentations 290 and bridges 292 establish awell-distributed load interface between the collar 300 and thereceptacle 280 having good rigidity properties when subjected to nominalapplications. Additionally, the laterally spaced apart bridges 292 havebeen found to greatly improve the crippling strength of the assembledcollar 310 and receptacle 280 combination. These features combine withthe aligning, capturing and retaining capability of the flex clips 310to hold the collar 300 to the upper portion or upper end 282 of thecontainer 210 and thereby laterally stabilize the collar 300 so that thecollar 300 remains in a substantially fixed position relative to thecontainer opening.

In additionally preferred and optional modifications to any of theembodiments of the invention, the plurality of indentations 292 and theplurality of spaced apart flex clips 310 are further positioned to beoppositely paired across the receptacle 280 to establish force loadcoupling between the pairs to increase rigidity and structural stabilityof the sealable containers 10, 210 when the collar 300 is fitted ontothe upper end or portion 282. This opposite or confronted pairingestablishes a series of coupled moment arm vectors having a distanceequal to the diameter, width, and/or depth dimension of the container,which greatly improves load distribution across the container 10, 210and increase the structural stability thereof.

Furthermore, it has been found that these novel features have resultedin an unexpected configuration that overcomes otherwise unacceptabletolerance anomalies and part mismatch between the collar 300 and theupper portion or upper end 282 of the receptacle 280, which greatlyreduces rejected parts and which significantly lowers manufacturingcosts. More specifically, it is optionally preferred to utilize upwardlyfacing surfaces or retainer lugs 312 that are dimensionally smaller (inat least a width or lateral dimension) than the downwardly facingsurfaces or upper lug ledges 296 of the receptacle 280.

In one aspect, this dimensional arrangement can enable the retainer lugsor upwardly facing surfaces 312 to move within the engagement recessesor indentations 290 and about the upper lug ledges or downwardly facingsurfaces 296. This can enable the combination of these components toabsorb dimensional tolerance errors and enable the collar to fit aroundthe upper portion of the container. Even more preferably, at least oneof the collar 300 and the upper end or portion of the walls 282 areformed from a substantially flexible material such as a polymericmaterial like polyethylene or polypropylene to enable at least one ofthe collar and the upper portion of the walls to flex.

Flexibility enables absorption of dimensional tolerance errors, whichenables the collar to fit around the upper portion of the container.Also, this can enable at least one of the collar 300 and the upperportion or end 282 of the walls to flex to accommodate shape mismatchbetween at least one of the collar and the upper portion of the walls toenable the collar to fit around the upper portion of the walls.

When assembled, the collar 310 and the upper end 282 of the receptacle280 form a subcollar space 320 (FIG. 26). In other optionally preferredarrangements of the collar 300, a raised seat 325 may be formed on theinwardly facing short wall 306 to establish a greater thickness of theshort wall 306 for applications where other elements may be attached tothe short wall. In one particularly preferred optional embodiment, aflexible, polymeric gasket or seal 330 may be affixed to the short wall306, and more preferably may be attached to the raised seat 325. Evenmore preferably, the flexible gasket 330 may be either affixed byadhesive to the short wall 306 and/or the raised step 325, or may bedirectly injection molded onto the short wall 306 and/or the raised step325.

In this particular example, the raised seat 325 may be also thermoformedas the collar 310 is formed or molded, or the raised seat 325 may beformed in a second and/or separate thermoforming step that may occurbefore the gasket 330 is attached. Additionally, the raised seat 325 maybe formed in the step at the same time or nearly the same time thegasket 335 is attached. The flexible gasket preferably extends inwardlyand interiorly with an internal edge 332.

Preferably, the flexible gasket is dimensioned to project inwardly orinteriorly and to removably rest against the sealing flange 284 asdepicted in FIGS. 20, 25 and 26. More preferably, the flexible gasket330 projects slightly downwardly to be biased against the sealing flange284 for an improved sealing configuration. Even more preferably, theflexible gasket 330 extends interiorly or inwardly to project theinternal edge 332 beyond the internal edge 286 of the sealing flange284. With this arrangement, the subcollar space 320 is sealed from theinterior space “I” to prevent contents of the interior space “I” fromentering the subcollar space 320. If such is not prevented, aninconvenience is presented wherein contents that have spilled into thesubcollar space 320 may further spill outside the container 210 bymoving through any interstice that may exist between the lower end ofthe outwardly facing long wall 302 and the lower seat rib 294 (FIG. 26).

With specific reference to FIGS. 20, 23, and 26, those skilled in theart may comprehend that the impervious seal 28 is removably sandwichedbetween the gasket 330 and the sealing flange 284 (and beneath thegasket 330). Upon initial use, when pull tab 28 a is grasped and theimpervious seal 28 is removed to expose the contents of the container210, the flexible gasket 330 flexes away from its rest position againstthe sealing flange 284 to enable removal of the impervious seal 28. Asthe impervious seal 28 is removed, the flexible gasket 330 returns toits rest position against the sealing flange 284. This configurationpermits a more robust hermetic, impervious seal 28 for distribution tothe end user, who removes the seal 28 upon first use, yet still enjoysthe benefits of the sealing wall and gasket 330 to prevent or minimizecontent leakage out of the interior space, I.

Many possible types of material are suitable for use in fabricating thegasket 330. One illustrative example of a suitable material includes athin polymeric material such as a thermoplastic elastomer having adurometer strength of approximately 50 or other similar Shore A gradematerial so that the impervious seal 28 may be easily removed while theflexible gasket is still able to retain some shape memory so that itreturns to a biased, sealing rest position against the sealing flange284. For optionally preferred applications, Shore A grade material suchas a Santoprene and similar compounds have been found to be satisfactoryand can be readily thermoformed or injection molded directly onto theinwardly facing short wall 306 and/or the raised seat 325.

In other equally preferred and optional variations to any of theembodiments of the invention, the gasket 330 may be integrally formed aspart of the collar 300 wherein the gasket 330 is a flap of flexible andthin material that is molded from and that extends from the interiorsurface of the collar 300. In this contemplated modification to any ofthe embodiments, among other options, the raised seat 325 can be formedto project inwardly as does the gasket 330.

Other modifications to the preferred embodiments of the containers 10,210 may incorporate a modified removable lid such as domed lid “D” shownin FIGS. 30 through 36. The new variation contemplated by removable lid“D” preferably defines the interior surface “D_(i)” to be sized to coverand seal the opening to the interior space “I” when the lid “D” isclosed. The lid “D” incorporates a sealing wall 340 depending from itsinterior surface “D_(i)” and that projects toward the sealing flange 284and which is centered and aligned by including optionally preferredalignment and/or wall ribs 341 (FIG. 30-31).

With this configuration, when the lid “D” is closed on the collar 300 toseal the container 210, the gasket 330, the sealing wall 340, and thesealing flange 284 are dimensioned and positioned so that the sealingwall 340 depresses and biases the flexible gasket 330 against theinternal edge 286 of the sealing flange 284 to seal the subcollar space320 from the container interior “I”. The flexibility and shape memoryand strength of the flexible gasket 330 must also withstand repeatedopening and closing of the lid “D” and biasing and unbiasing of thegasket 330 by the moving sealing wall 340, so that the flexible gasketremains biased and at rest against the sealing flange 384. Theseoptionally preferred variations of the position of the sealing wall 340are contemplated as shown with the solid and dashed line representationsof sealing wall 340 shown in FIG. 26.

In any of the possibly preferred positions of sealing wall 340, thelength and/or location of the downwardly projecting lower edge 342 isadjustable as preferred so that the lower edge 342 can, when lid “L” or“D” is in the closed position, terminate just above, bias against,and/or bias against and depress gasket 300 downward so that gasket 330is in turn biased against sealing flange 284. In further alternativevariations to the preceding embodiments, the flexible gasket 330 may beattached to the sealing wall 340 instead of the raised seat 325. Infurther variations, a second gasket (not shown) may be attached to thesealing wall 340 either alone and/or in addition to and to cooperatewith the flexible gasket 330 that is attached to the raised seat 325.

In still other modifications to any of the variations of the preferredembodiments, the sealing wall 340 may be implemented to function with orwithout the use of a gasket 330 and may include a funneled lower edge342 such as those shown in FIGS. 27 and 28. In FIG. 27, the funneledlower edge 342 includes an inwardly curved and/or inwardly taperingsealing wall 340 a. In FIG. 28, the funneled lower edge 342 incorporatesan inwardly slanted and/or tapering sealing wall 340 b. A combination ofa slanted and/or curved and tapering wall 340 a and 340 b is alsocontemplated, which can be used either alone and/or in combination withthe flexible and/or integral gasket 330 illustrated elsewhere herein.Particularly in embodiments not using the gasket 330, the sealing wall340 may be dimensioned so that when the lid “D” is closed, the sealingwall 340 remains inward of the sealing flange 284.

In further preferred variations to the preceding embodiments, the lid“D” more preferably includes a substantially domed central section 344that has dimensions less than the sealing wall 340. The domed centralsection is joined to the lid either by the sealing wall, by an angledwall 346, and by a combination thereof, wherein the angled wall 346tapers from the domed central section down to the interior surface“D_(i)” proximate to the sealing wall 340 (FIGS. 34-36). As with earlierdiscussed embodiments and modifications thereto, the modified lid “D” isconfigured with an overall shape that cooperates with the shape of thebottom wall 14 to enable easy stacking of the containers 210. Proximateto the junction of the sealing wall 340 and the angled tapered wall 346,a collar engagement member projects generally downward to a lip edge 348that seats into and engages with lip seat 305 of the collar 300, so thatwhen the lid “D” is closed, a more rigid and tightly closed assembly ofcollar 300 and lid “D” is established.

In the adaptation wherein the substantially domed central section 344 isconnected only by the sealing wall 340, essentially the tapered angledwall 346 merges with the sealing wall 340 to have an angle relative tothe vertical direction of approximately 90 degrees. The tapered angledwall 346 is in other variations arranged to have an angle relative to avertical direction of between approximately 10 and approximately 75degrees, and preferably between about 15 and 60 degrees, and morepreferably between about 25 and 45 degrees, and even more preferablyapproximately 30 degrees. The substantially domed central section 344extending to the sealing wall preferably is dimensioned to define anarea between approximately 20 percent and approximately 80 percentsmaller than an entire area defined by the removable lid. Further, thesubstantially domed central section 344 projects upwardly with a heightdimension that is between approximately 10 percent and approximately 60percent of a cumulative lid height dimension; ideally to house the scoopabove the impervious seal 28.

These variations of the substantially domed lid have been found to be ofsignificance when the sealable container 210 is in use with powderedcontents contained therein. When the container 210 is jostled about andinverted during transit, such as when being transported in the diaperbag of a parent or when being shipped from a warehouse to a retaillocation while being upside-down and inverted, the powdered contents maycollect and become packed into a small mountain resting against portionsof the interior surface “D_(i)” of the lid “D”. When such a disorientedcontainer is righted, the angled wall 346 and the sealing wall 340cooperate to more readily and effectively disengage the collected and/orpacked contents from the interior surface “D_(i)” of the lid “D” so thatthe packed or collected contents fall freely down into the interiorspace “I” of the container 210.

Many factors can contribute to creating an inconvenient accumulation ofpowder packed into the lid “L” or “D”. Those skilled in the relevantarts often characterize the flowability of a powdered material to be afunction of many variables that include particle size and distribution,cohesivity, static charge, surface coating, ability to recover frompacking or compaction, temperature, humidity, aeration, transportationexperience, and container surface effects. Even with so many powderflowability characteristics confronting the manufacturer and the user ofcontainer according to the principles of the invention, it has beenfound that the new and novel angled and/or tapered wall 346 of theinvention, alone and in combination with the other powder controlfeatures described herein, have established a new and previously unseenmeans of directing powdered contents back into the interior space “H”upon righting of the containers 10, 210.

The arrangement of the flexible gasket 330 biased at rest against thesealing flange 284 further cooperates to mostly if not entirely preventthe contents from entering the subcollar space 320 while directing thecontents back into the interior space “I”. Additionally, the arrangementof the flexible gasket 330 and its internal edge 332 extending inwardlybeyond the internal edge 286 of the sealing flange 284 also serves tobetter direct the contents away from the subcollar space 320 and intothe interior space “I”. Also, the powder directing capabilities can befurther implemented with any combination of the flexible and integralgaskets 330, whether used alone and/or in combination with the straight,funneled, curved, and slanted sealing wall 340 variations describedabove.

In any of the embodiments of the invention where a powder controlfeature is implemented as described here, significant advantages areachieved by ensuring that powdered and granular contents are droppedinto the interior space “H” and away from the interior surfaces “L_(i)”and “D_(i)” of lids “L” and “D”, and are prevented from entering thesubcollar space 320

As previously described in connection with earlier embodiment andvariations thereof, a living hinge or a mechanical hinge can be used tohingedly and/or pivotally attach the lid “D” to the collar 300.Referring to FIGS. 17, 18, 20 and 30, among others, it can be seen thatthe mechanical hinge adaptation can include the hinge 224 having a hingeseparation or wheel base that is farther apart than earlier describedembodiments, which can improve the strength thereof. Another possiblypreferred mechanical hinge can include a pinned hinge having cooperativedetentes and engagement ridges that enable a frictional ratcheting ofthe lid “D” between the open and closed positions, which prevents thelid “D” from falling closed while contents are being removed from theinterior space 320.

In another contemplated variation of the preferred embodiments of theinvention, the receptacle 280 of the container 210 is further modifiedto incorporate a means to compensate for changing external pressures dueto altitude changes of the sealed container 210. Ordinarily, thecontainer 210 is sealed with impervious seal 28 whereby the pressure inthe interior space “I” remains unchanged. However, distribution ofcontainer 210 after filling with salable contents creates theprobability that the filled containers 210 will experience widelyvarying pressure changes. Such changes may lead to breach or rupture ofthe impervious seal 28. A stronger, pressure resistant seal 28 may beundesirable because the user may not have enough strength to open theimpervious seal 28.

Accordingly, as can be seen with reference to FIGS. 17-18, and 37-39,the bottom surface 214 a of the bottom wall 214 of the receptacle 280may incorporate a pressure control portion formed from a stepped orcentral raised stepped or stiffener portion 350 formed with an outerplanar portion 352 adapted to enable the container 210 to rest in alevel position on a flat surface such as a table or counter-top.

The pressure control portion is also referred to as the central raisedstiffener portion 350. Contrary to the plain meaning of the word“stiffener”, this phrase refers to features that may be incorporated andwhich include, for purposes of example without limitation, a flexibleand/or collapsible pressure relief section.

Extending towards the interior space “I”, the central raised stepped orstiffener portion 350 includes a plurality of steps 354 having riserportions 356 and tread portions 358. The riser portions 356 preferablyproject in a direction substantially upward relative to the outer planarportion 352 with the tread portions 358 being approximately parallel tothe outer planar portion 352.

More preferably, the steps 354 that are formed from the riser and treadportions 356, 358 can form 3, 4, 5 or more or less steps that togethercan enable an incremental reduction in pressure by the incrementalcollapse of one or all of the steps so that pressure in the interiorspace “I” may be lowered to compensate for unequal pressure and tolessen any pressure between the interior space “I” and the externalatmosphere. In this way, when a container such as containers 10, 210 arefilled with contents at a sea level factory, and the containers areshipped via aircraft or over high-altitude land routes, the imperviousseal 28 of the containers 10, 210 may remain intact despite varyingexternal pressures. Alternatively, the steps 354 may be adapted to havea thickness and or a bellows and or an accordion cross-sectionalstructure similar to that shown in FIGS. 17-18 and FIGS. 37, 38 a-b, and39 a-b, and that establishes a material strength that prevents collapseand that resists deformation of the bottom wall 214 when exposed to suchpressure differentials. Even more preferably, the steps 354 include acombination of steps that resist collapse and or deformation whenexposed to a pressure differential as well as steps that are formed witha reduced cross-sectional thickness (FIGS. 38 a-b) or with a type offlexible bellows or accordion or pleated section (FIGS. 39 a-b) thatexaggerates the undulations of or that is combined with the steps asshown in FIGS. 17-18, and 37, 38 a-b and 39 a-b. Although shown in FIGS.39 a-b to have a generally undulating bellows type of profile, and moretriangular or pleated undulation arrangement may also be optionallyincorporated.

Most preferably, the undulating bellows arrangement (FIGS. 39 a-b) mayretain the stackable capability by preserving the cooperative shapesbetween the lids “D” or “L” and the recess defined by the bottom wall14. This flexible and/or bellows adaptation of the steps 354 preferablyretains the stackability clearance and spacing of earlier configurationsby generally following the curvature of inclination line 360 (FIGS. 39a-b), which extends inwardly towards the interior space “I” or “H” sothat any flexure or collapse of a portion of the steps 354 relieves someor all of the pressure differential without detriment to stackability.These stepped arrangements may be used alone or in combination with oneor more of the arrangements of FIGS. 17-18 as well as the more flexiblereduced thickness variation of FIGS. 38 a-b. With any of thesealternative configurations, the steps 354 may be optionally orpreferably adapted to collapse and or flex in response to thecontemplated pressure differential in a way that accommodates and/orreduces any stress on the containers 10, 210 due to pressure changes.

With the multiple stepped arrangement illustrated here, the collapse ofone or more steps 354 will preferably not result in the central steppedportion 350 distending beyond the generally level outer planar portion352. Such pressure differentials may be experienced even withoutaltitude changes. For example, and as discussed elsewhere herein, thecontainers of the invention may be subjected to external crushingpressures during shipment with a commercial carrier as well as duringmovement by a parent carrying the inventive container in a diaper bag.

The materials of the components of the containers 10 and 210 are notcritical. However, certain materials for the components of the containerare preferred on account of, for example, such considerations asmanufacturing considerations, economic considerations, and consumerconsiderations. The tub-shaped receptacle typically comprises amultiple-layer material, wherein the multiple-layer material comprisesan inner layer, an outer layer and a regrind layer between the innerlayer and the outer layer.

Such a multiple-layer material is described in U.S. Patent ApplicationPublication No. 2004/0161558, published Aug. 19, 2004, incorporatedherein by reference. The assembly comprising the collar 84 and the lid“L” typically comprises a polymeric material, such as, for example,polypropylene, high-density polyethylene. The scoop typically comprisesa polymeric material, such as, for example, polypropylene, high-densitypolyethylene.

OPERATION

In use, the container 10 or 210 is grasped with a single hand using theenhanced gripping recesses 26 a, 26 b, 27 a, 27 b, 226 a, 226 b, 227 a,227 b. The containers 10, 210 are then opened by actuation of the latch54 and, if necessary for a new container, the impervious seal 28 isremoved by grasping the pull tab 28 a and pulling the seal 28 away fromthe sealing flange 284. Next, the user uses his or her free hand toretrieve the scoop 32 from the lid “L” or “D” of the containers 10, 210to scoop and dispense the contents. The user avoids the inconvenience ofpowder spilling from the scoop 32 because the bowl 36 was covered bybracket 30 a. Furthermore, any powdered contents that may have come torest in the lid “L” or “D” prior to opening, was directed away from thesubcollar space 320 and into the interior space “H” where it remainsready for dispensing. The container 10 and the scoop 32 togethercooperate as a system that enables the user to conveniently use thescoop 32 to remove a predetermined volume or portion of the contents ofthe container.

After the scoop 32 has been used, the scoop 32 can be reattached to thescoop holder 30 on the lid “L” for all subsequent times the scoop is tobe used. The lid is then closed, securing the powder therein.Accordingly, the granular or powdered product will not be spilled,wasted, or contaminated by contact with the hand of the user.

INDUSTRIAL APPLICABILITY

The embodiments of the present invention are suitable for use in manyapplications that involve manufacture, distribution, storage, sale, anduse of flowable substances such as powders and granular materials. Theconfigurations of the inventive container can be modified to accommodatenearly any conceivable type of such materials, and the shape, size, andarrangement of the features and components of the novel container can bemodified according to the principles of the invention as may be requiredto suit a particular type or quantity of flowable material, as well as apreferred mode of use, storage, manufacture, distribution, and/or salesenvironment.

Such modifications and alternative arrangements may be further preferredand/or optionally desired to establish compatibility with the widevariety of possible applications that are susceptible for use with theinventive and improved containers for containing flowable materials aredescribed and contemplated herein. Accordingly, even though only fewsuch embodiments, alternatives, variations, and modifications of thepresent invention are described and illustrated, it is to be understoodthat the practice of such additional modifications and variations andthe equivalents thereof, are within the spirit and scope of theinvention as defined in the claims.

1. A sealable container, comprising: walls defining interior andexterior surfaces and an interior space, the walls having an upperportion near an upper end of the walls that defines a sealing flange,the sealing flange having an internal edge that defines an opening tothe interior space; a collar having an interior surface adapted to fitaround the container near the upper portion and defining a subcollarspace between the exterior surface of the container and the interiorsurface of the collar; a collar-mounted removable lid having an interiorsurface which, when in a closed position, is adapted to cover and sealthe opening, the lid having a sealing wall depending from its interiorsurface and projecting toward the sealing flange and being dimensionedto remain inward of the sealing flange when in the closed position, thelid further having a substantially domed central section of dimensionsless than the sealing wall and joined to the lid by an angled walltapering from the domed central section down to the interior surfaceproximate to the sealing wall; and wherein, upon righting a disorientedcontainer having contents, the angled wall and the sealing wallcooperate to direct the contents packed against the interior surface ofthe lid down into the interior space of the container to substantiallyprevent entry into the subcollar space.
 2. The sealable containeraccording to claim 1, further comprising: a flexible gasket carried fromthe collar and dimensioned to be biased against the sealing flange; andwherein when the lid is in the closed position, the gasket, the sealingwall and the sealing flange are dimensioned such that the sealing wallbiases the flexible gasket against the internal edge of the sealingflange to seal the subcollar space from the container interior andwhereby the flexible gasket further cooperates with the angled wall andthe sealing wall to direct the packed contents into the interior spaceof the container to substantially prevent entry into the subcollarspace.
 3. The sealable container according to claim 2, wherein thegasket attaches to and depends from the interior surface of the collar,and has an internal edge extending inwardly beyond the internal edge ofthe sealing flange and wherein when the lid is in an open position, thegasket is arranged to remain biased against the sealing flange tofurther cooperate in directing the packed contents into the interiorspace of the container to substantially prevent entry into the subcollarspace.
 4. The sealable container according to claim 1, wherein thetapered angled wall is arranged to have an angle relative to a verticaldirection of between approximately 10 degrees and approximately 90degrees.
 5. The sealable container according to claim 1, wherein thetapered angled wall is arranged to have an angle relative to a verticaldirection of between approximately 15 and approximately 75 degrees. 6.The sealable container according to claim 1, wherein the tapered angledwall is arranged to have an angle relative to a vertical direction ofbetween approximately 20 and approximately 60 degrees.
 7. The sealablecontainer according to claim 1, wherein the tapered angled wall isarranged to have an angle relative to a vertical direction of betweenapproximately 25 and approximately 45 degrees.
 8. The sealable containeraccording to claim 7, wherein the tapered angled wall is arranged tohave an angle relative to a vertical direction of approximately 30degrees.
 9. The sealable container according to claim 1, wherein thesubstantially domed central section extending to the sealing walldefines an area between approximately 20 percent and approximately 80percent smaller than an area defined by the removable lid.
 10. Thesealable container according to claim 1, wherein the substantially domedcentral section projects upwardly with a height dimension that isbetween approximately 10 percent and approximately 60 percent of acumulative lid height dimension.
 11. The sealable container according toclaim 1, further comprising: a scoop holder projecting from the interiorsurface of the lid and positioned proximately within the substantiallydomed central section, the scoop holder having brackets with a cover anda restraint; a scoop having a handle extending from a bowl and adaptedto be removably retained in the scoop holder; and wherein when the scoopis retained in the scoop holder, the restraint captures the handle toprevent movement and the cover seals the bowl to prevent the contentsfrom entering the bowl.
 12. The sealable container according to claim 9,wherein the scoop holder incorporates a first projection extending fromthe interior surface and having a handle holding notch to hold thehandle away from the interior surface in a grasping position.